phon
The phon is a unit used to indicate an individual's perception of loudness. By definition, 1 phon is equivalent to 1 decibel at 1,000 Hz (1 kHz).
The phon is a unit used to indicate an individual's perception of loudness. By definition, 1 phon is equivalent to 1 decibel at 1,000 Hz (1 kHz).
